EP1724617B1 - Optical device - Google Patents
Optical device Download PDFInfo
- Publication number
- EP1724617B1 EP1724617B1 EP05719992A EP05719992A EP1724617B1 EP 1724617 B1 EP1724617 B1 EP 1724617B1 EP 05719992 A EP05719992 A EP 05719992A EP 05719992 A EP05719992 A EP 05719992A EP 1724617 B1 EP1724617 B1 EP 1724617B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- polarizing film
- protective film
- polarizing
- laminated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
-
- G02B1/105—
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B2037/0092—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding in which absence of adhesives is explicitly presented as an advantage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2310/00—Treatment by energy or chemical effects
- B32B2310/08—Treatment by energy or chemical effects by wave energy or particle radiation
- B32B2310/0806—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation
- B32B2310/0831—Treatment by energy or chemical effects by wave energy or particle radiation using electromagnetic radiation using UV radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2329/00—Polyvinylalcohols, polyvinylethers, polyvinylaldehydes, polyvinylketones or polyvinylketals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2331/00—Polyvinylesters
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/50—Protective arrangements
Definitions
- This invention relates to a method for obtaining an optical device having a laminate layer of a polyvinyl alcohol- or polyvinylene-base polarizing film and a protective film.
- a polarizing plate which is one component of the optical device, has a structure in which transparent protective films are laminated to both sides of a polyvinyl alcohol base polarizing film in which iodine or a dye is adsorbed and oriented or a polyvinylene base polarizing film obtained by the dehydration of polyvinyl alcohol.
- An adhesive has been used in laminating these layers together.
- Various adhesives have been known for this purpose, examples of which include epoxy, acrylic, and urethane-base types, but there is a drawback in these adhesives generally not to have enough adhesion to stick to a polarizing film.
- Vinyl acetate adhesives and polyvinyl alcohol adhesives have relatively good adhesion to a polarizing film, but these adhesives have a problem that the adhesive strength is affected by humidity.
- liquid crystal display devices have sometimes become to be used under conditions of high temperature and humidity in outdoor or automotive applications, and this creates a need for a polarizing plate with high resistance to heat and moisture and with a high degree of polarization and high transmission for high-resolution color display.
- a method to use a triacetyl cellulose film as a protective film on one side, and a polycarbonate resin film and/or a polymethyl methacrylate resin film as the other side protective film Japanese Laid-Open Patent Application H7-56017 .
- the inventors arrived at the present invention upon discovering that a polarizing film and a protective film can be directly laminated without having to use any adhesive including a pressure-sensitive adhesive. Specifically, it is an object of the present invention to provide an optical device with which film thickness and cost can be reduced and the production process can be simplified, by directly laminating a polarizing film and a protective film and, if necessary, a retardation plate, without any adhesive including a pressure-sensitive adhesive being interposed therebetween.
- the optical device pertaining to the present invention has a protective film directly laminated, without any adhesive layer including a pressure-sensitive adhesive layer being interposed, to at least one side of a polyvinyl alcohol- or polyvinylene-base polarizing film.
- the optical device further comprises a retardation plate, in which one of the protective films and the retardation plate are directly laminated, without any adhesive layer including a pressure-sensitive adhesive layer being interposed.
- a retardation plate may be used as one of the protective films in the optical device.
- the surfaces of the polarizing film, protective film, and retardation plate has been treated with energy rays having an energy of at least 5 eV.
- the protective film on one side is a film composed of triacetyl cellulose, alicyclic polyolefin resin, or alicyclic acrylic resin
- the protective film on the other side is a film composed of triacetyl cellulose, polycarbonate, polyethylene terephthalate, polyethylene naphthalate, (meth)acrylate resin, alicyclic polyolefin resin, or alicyclic acrylic resin.
- the protective film is laminated to only one side of the polarizing film, it is a film composed of triacetyl cellulose, polycarbonate, polyethylene terephthalate, polyethylene naphthalate, (meth)acrylate resin, alicyclic polyolefin resin, or alicyclic acrylic resin.
- a polarizing film and a protective film, and/or a protective film and a retardation plate, and/or a polarizing film and a retardation plate are directly laminated without the use of any adhesive including a pressure-sensitive adhesive, film thickness and cost can be reduced and the production process can be simplified. Also, with the present invention, because it is possible to laminate a polarizing film, a protective film, and a retardation plate that have no adhesiveness, without using any adhesive including a pressure-sensitive adhesive, various transparent films having no adhesiveness or pressure-sensitive adhesiveness can be used as a protective film and a retardation plate.
- FIG. 1 is a vertical cross sectional view of a polarizing plate pertaining to a first embodiment of the present invention
- FIG. 2 is a vertical cross sectional view of a polarizing plate pertaining to a second embodiment of the present invention
- FIG. 3 is a vertical cross sectional view of a polarizing plate pertaining to a third embodiment of the present invention, which is equipped with a retardation plate
- FIG. 4 is a vertical cross sectional view of a polarizing plate pertaining to a fourth embodiment of the present invention, which is equipped with a retardation plate.
- the protective film a is disposed on the opposite side from a liquid crystal cell face 11a when mounted in the liquid crystal cell 11, and the protective film c is disposed on the glass surface side of the liquid crystal cell 11, that is, on the liquid crystal cell surface side 11a .
- the protective film a is laminated directly to only one side of the polarizing film b, without any adhesive including a pressure-sensitive adhesive interposed therebetween in the polarizing film in FIG. 2
- Polyvinyl alcohol or polyvinylene base films are used as the polarizing film b that constitutes the polarizing plate 1.
- a polymer produced by saponifying a polyvinyl ester polymer obtained by polymerizing a vinyl ester monomer can be used as the polyvinyl alcohol polymer that forms the polyvinyl alcohol-base polarizing film, and vinyl acetate is preferably used as the vinyl ester monomer here.
- a copolymerizable monomer can be copolymerized with said vinyl ester monomer as needed, to the extent that the effect of the present invention is not compromised.
- the polyvinylene polymer that constitutes the polyvinylene polarizing film b can be one in which a polyene structure is formed by dehydrating said polyvinyl alcohol polymer, or by removing the hydrogen halide from a halogen-containing vinyl polymer such as polyvinyl chloride, or it can be one in which a polyene structure is formed by polymerizing a vinylene monomer such as acetylene, for example.
- Examples of the protective films a and c that constitute the polarizing plate 1 include films composed of triacetyl cellulose and other such cellulose esters or derivatives thereof; polyethylene terephthalate, polyethylene naphthalate, and other such polyester films; polycarbonate films; polyethylene, polypropylene, and other such polyolefin films or polycycloolefin, norbomene resin, and other such alicyclic polyolefin films; films composed of polymethyl methacrylate, acrylic resins, or alicyclic acrylic resins; and ethylene vinyl alcohol films.
- triacetyl cellulose is preferable.
- a film in which two or more of the above resins are laminated or mixed can also be used.
- the protective film c disposed on one side of the polarizing film b must be one with little birefringence effect, and to this end, films composed of triacetyl cellulose and other such cellulose esters or derivatives thereof, or polycycloolefins, norbomene resins, and other such alicyclic polyolefin films, or films composed of alicyclic acrylic resins are used, for example.
- the protective film a disposed on the other side of the polarizing film b, that is, the opposite side from the liquid crystal cell, may be one that is transparent, and in addition to the above-mentioned films composed of triacetyl cellulose and other such cellulose esters or derivatives thereof, or polycycloolefins, norbomene resins, and other such alicyclic polyolefin films, or films composed of alicyclic acrylic resins, other films that can be used favorably include polyethylene terephthalate, polyethylene naphthalate, and other such polyester films; polyethylene, polypropylene, and other such polyolefin films; polycarbonate films; and films composed of polymethyl methacrylate, (meth)acrylate resins, and other such acrylic resins.
- the retardation plate d examples include a retardation plate formed from a single crystal of mica, quartz, rock crystal, calcite, LiNbO 3 , LiTaO 3 , or another such material with birefringence; a retardation plate having a birefringent film on the surface of an underlying substrate, obtained by vapor depositing an inorganic material at an angle to a glass substrate or other such underlying substrate; a retardation plate having an LB (Langmuir-Blodget) film with birefringence; and a retardation plate formed by sandwiching between two glass substrates or by bonding to a glass substrate ,in order to keep the film flat and in a constant shape, a retardation film obtained by drawing a transparent resin film made of triacetyl cellulose (TAC) or another such cellulose ester, polycarbonate, polyvinyl alcohol (PVA), polyvinyl butyral (PVB), polyethylene terephthalate (PET), polypropylene (PP), polyally
- a polarizing film with excellent resistance to wet heat such as a polyvinylene base polarizing film or a polyvinyl alcohol base polarizing film containing a dichroic dye
- an optical device 1A with excellent wet heat resistance can be obtained either by directly laminating the retardation plate d to the surface of the protective film c on the liquid crystal cell side, without any adhesive layer including a pressure-sensitive adhesive layer interposed, as shown in FIG.
- the surface of the protective film a on the observer's side, which is disposed on the outside of the polarizing film is subjected to an antiglare treatment and/or an antireflective treatment. This makes it easier for a user to view the liquid crystal cell.
- the lamination is performed after the surfaces of the polarizing film, protective films, and retardation plate that are in contact with each other have been treated by being irradiated with energy rays having an energy of at least 5 eV, to prepare the optical devices 1 and 1A pertaining to the present invention.
- energy rays having an energy of at least 5 eV include ultraviolet rays, electron beams, and ion beams, of which the use of ultraviolet rays is preferable because of its simplicity.
- Examples of ultraviolet ray sources include an excimer laser, a high-pressure mercury lamp, a low-pressure mercury lamp, a halogen lamp, and an excimer lamp.
- Examples of the excimer lamp here include a dielectric barrier discharge lamp charged with argon, krypton, or xenon, or with a gas whose main component is argon, krypton, or xenon. Of these, the use of xenon is preferred.
- the polarizing film surface and/or the protective film surface and/or the retardation plate surface during energy ray irradiation is in contact with a gas, in which case it is preferably brought into contact with at least one gas selected from among air, hydrogen, oxygen, nitrogen, ozone, hydrogen peroxide, water vapor, carbon dioxide, carbon monoxide, ammonia, nitrogen monoxide, nitrogen dioxide, inert gases such as argon, and low-boiling organic compounds such as ketones, alcohols, and hydrazine, or a mixture of these gases. It is preferable for the gas to be air because the operation will be simpler and the work easier.
- lamination is preferably performed immediately after energy ray irradiation. It was also discovered that the effect of the energy ray irradiation will in some cases be diminished over time, but is improved by rinsing with water. Therefore, lamination may be performed after immersion in cold or hot water following energy ray irradiation.
- Irradiation with energy rays having an energy of at least 5 eV readily breaks molecular bonds such as C-C and C-H and modifies the surface of resins, and this makes possible more secure, direct lamination without the use of an adhesive or pressure-sensitive adhesive. If the energy of the energy rays is less than 5 eV, adhesive strength will not be high enough.
- the result of carrying out the above-mentioned surface treatment in at least one gas selected from among air, hydrogen, oxygen, nitrogen, ozone, hydrogen peroxide, water vapor, carbon dioxide, carbon monoxide, ammonia, nitrogen monoxide, nitrogen dioxide, inert gases such as argon, and low-boiling organic compounds such as ketones, alcohols, and hydrazine, or a mixture of these gases, is that the molecular bonds broken by the carbon component, oxygen component, nitrogen component, water, or the like in the atmosphere are surface modified to produce highly hydrophilic functional groups such as hydroxyl groups, amino groups, ketone groups, aldehyde groups, or carboxyl groups.
- the breaking of C-C bonds, C-H bonds, or the like proceeds, forming an oligomer or low-molecular weight compound on the surface, and the surface has the adherent property.
- the adherend surface of the polarizing film and the protective film and retardation plate is irradiated with energy rays of at least 5 eV, after which two components of the films and plate are laminated together and then two surfaces are securely bonded and fixed, and therefore there is no need for an intermediate layer composed of an adhesive or pressure-sensitive adhesive to be interposed between the adherends, which means that direct lamination is possible.
- This allows film thickness and cost to be reduced and the production process to be simplified, and furthermore, this gives a polarizing plate in which the decrease in light ray transmission does not occur as caused by the existence of an intermediate layer.
- a xenon lamp made by Ushio U-Tech Inc. (UER200/HM172; energy of 7.3 eV) was used, and the polarizing film b in FIG. 1 was produced by adsorbing iodine to a polyvinyl alcohol film made by Kuraray Co. Ltd. and then drawing the film.
- a triacetyl cellulose (TAC) film made by Fuji Photo Film Co. Ltd. was used for the protective films a and c on both sides of the polarizing film.
- the distance between the xenon lamp and the triacetyl cellulose film was accurately adjusted to 2 mm, and irradiation with ultraviolet rays was performed in air for 30 seconds.
- the contact angle between water and the polarizing film was measured with a contact angle meter made by Kyowa Interface Science Co. Ltd. (model CA-DT-A), and found to be 10° (at a temperature of 25°C and a relative humidity of 50%).
- the polarizing film and the protective films were laminated under a lamination pressure of 2.94 N/cm 2 , which gave the polarizing plate 1 (optical device).
- the adhesive strength between the polarizing film and the protective films in this polarizing plate was measured by 90-degree peel test, which revealed that the adhesive strength at a film width of 50 mm was 0.49N.
- Protective films were surface modified under the same conditions as in Example 1, and the polarizing film was also similarly subjected to the surface modification treatment. Next, the polarizing film and the protective films were laminated under a lamination pressure of 2.94 N/cm 2 , which gave a polarizing plate. The adhesive strength between the polarizing film and the protective films in this polarizing film was measured by 90-degree peel test, which revealed that the adhesive strength at a film width of 50 mm was 0.98N.
- a polarizing film and protective films were surface modified under the same conditions as in Example 1. Next, the protective films were immersed in water, after which the polarizing film and the protective films were laminated under a lamination pressure of 2.94 N/cm 2 , which gave a polarizing plate. The adhesive strength between the polarizing film and the protective films in this polarizing plate was measured by 90-degree peel test, which revealed that the adhesive strength at a film width of 50 mm was 1.47N.
- the polarizing film b and the surface modified protective film a on one side thereof as shown in FIG. 2 were laminated under a lamination pressure of 2.94 N/cm 2 , which gave a polarizing plate.
- the adhesive strength between the polarizing film and the protective film in this polarizing plate was measured by 90-degree peel test, which revealed that the adhesive strength at a film width of 50 mm was 0.20 N.
- a polyvinylene-base polarizing film obtained by dehydration of a polyvinyl alcohol made by Kuraray Co. Ltd. was used as the polarizing film.
- a triacetyl cellulose (TAC) film made by Fuji Photo Film Co., Ltd. was used as the protective films.
- the polarizing film and the protective films to be laminated to both sides of the polarizing film were surface modified in the same manner as in Example 2, and then the polarizing film and the protective films were laminated to obtain a polarizing plate.
- the polarizing film was produced by adsorbing a dichroic dye to a polyvinyl alcohol film made by Kuraray Co. Ltd. and then drawing this product.
- a triacetyl cellulose film made by Fuji Photo Film Co., Ltd. was used for the protective film c on the liquid crystal cell side, and a polyethylene terephthalate film made by Toyobo Co., Ltd. that had been subjected to an antireflective treatment was used for the protective film a on the observer's side.
- the polarizing film and the protective films to be laminated to both sides of the polarizing film were surface modified in the same manner as in Example 2, and then the polarizing film and the protective films were laminated to obtain a polarizing plate.
- the polarizing film was produced by adsorbing iodine to a polyvinyl alcohol film made by Kuraray Co. Ltd. and then drawing this product.
- a triacetyl cellulose film made by Fuji Photo Film Co., Ltd. was used for the protective film c on the liquid crystal cell side, and a polycarbonate film made by Mitsubishi Engineering-Plastics Corporation was used for the protective film a on the observer's side.
- the polarizing film and the protective films to be laminated to both sides of the polarizing film were surface modified in the same manner as in Example 2, and then the polarizing film and the protective films were laminated to obtain a polarizing plate.
- TAC film and the Zeonor film were laminated to both sides of a polarizing film under a lamination pressure of 2.94 N/cm 2 , and the adhesive strength thereof was measured by 90-degree peel test, which revealed that the adhesive strength at a film width of 50 mm was 0.50 N.
- a Zeonor film (a cycloolefin polymer) made by Zeon Corporation was used as the retardation plate d in FIG. 3 , the distance between a xenon lamp made by Ushio U-Tech Inc. and the Zeonor film was accurately adjusted to 2 mm, and irradiation with ultraviolet rays was performed in air for 30 seconds. Then, the TAC (protective film) of the polarizing plate obtained in Example 5 was also surface modified in the same manner as in Example 1, and was laminated with the Zeonor film d to obtain an optical device 1A (polarizing plate with the retardation plate).
- a polarizing film produced by adsorbing a dichroic dye to a polyvinyl alcohol film made by Kuraray Co. Ltd. and then drawing this product, and a Zeonor film made by Zeon Corporation were irradiated with ultraviolet rays under the same conditions as in Example 1.
- the polarizing film and the Zeonor film were laminated under a lamination pressure of 2.94 N/cm 2 , and the adhesive strength thereof was measured by 90-degree peel test, which revealed that the adhesive strength at a film width of 50 mm was 0.20 N.
- a Zeonor film (a cycloolefin polymer film) made by Zeon Corporation was used as the retardation plate d in FIG. 4 the distance between a xenon lamp made by Ushio U-Tech Inc. and the Zeonor film was accurately adjusted to 2 mm, and irradiation with ultraviolet rays was performed in air for 30 seconds. Then, the TAC (protective film) of the polarizing plate obtained in Example 4 was also surface modified in the same manner as in Example 1, and was laminated with the Zeonor film to obtain an optical device 1A.
- a xenon lamp made by Ushio U-Tech Inc. (UER200/HM172; energy of 7.3 eV) was used, a triacetyl cellulose (TAC) film made by Fuji Photo Film Co., Ltd. was used as the protective film a as shown in FIG. 4 , and a Zeonor film made by Zeon Corporation was used as the retardation plate d, the distance between the xenon lamp and the two films was accurately adjusted to 2 mm, and irradiation with ultraviolet rays was performed in air for 200 seconds.
- Ushio U-Tech Inc. Ushio U-Tech Inc.
- TAC triacetyl cellulose
- the TAC film and the Zeonor film were laminated on both sides of the polarizing film b as shown in Example 1 under a lamination pressure of 2.94 N/cm 2 , and the adhesive strength thereof was measured by 90-degree peel test. As a result, the Zeonor film was broken at a width of 50 mm.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polarising Elements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004065671 | 2004-03-09 | ||
PCT/JP2005/003720 WO2005085918A1 (ja) | 2004-03-09 | 2005-03-04 | 光学素子 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1724617A1 EP1724617A1 (en) | 2006-11-22 |
EP1724617A4 EP1724617A4 (en) | 2010-04-14 |
EP1724617B1 true EP1724617B1 (en) | 2012-08-15 |
Family
ID=34918267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05719992A Not-in-force EP1724617B1 (en) | 2004-03-09 | 2005-03-04 | Optical device |
Country Status (6)
Country | Link |
---|---|
US (2) | US20070159576A1 (zh) |
EP (1) | EP1724617B1 (zh) |
JP (1) | JPWO2005085918A1 (zh) |
CN (1) | CN100422772C (zh) |
TW (1) | TWI367927B (zh) |
WO (1) | WO2005085918A1 (zh) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI361814B (en) * | 2003-03-07 | 2012-04-11 | Kuraray Co | Plastic bonding method |
JP2009098653A (ja) | 2007-09-27 | 2009-05-07 | Nitto Denko Corp | 偏光板、光学フィルムおよび画像表示装置 |
JP2009157348A (ja) * | 2007-12-04 | 2009-07-16 | Sumitomo Chemical Co Ltd | 偏光板およびそれを用いた液晶表示装置 |
CN101713838A (zh) * | 2008-10-03 | 2010-05-26 | 住友化学株式会社 | 偏振片和液晶显示装置 |
TW201019031A (en) * | 2008-11-04 | 2010-05-16 | Wistron Corp | Projecting system capable of forming 3D images and related method |
JP5455019B2 (ja) | 2009-02-26 | 2014-03-26 | 大日本印刷株式会社 | 電磁波反射部材 |
KR101007884B1 (ko) * | 2010-04-22 | 2011-01-14 | 주식회사 한국 오.지.케이 | 입체(쓰리디) 화상 시청용 시력 교정 렌즈조립체 |
KR101045500B1 (ko) * | 2010-04-23 | 2011-06-30 | 주식회사 한국 오.지.케이 | 돗수렌즈가 결합된 입체(쓰리디)화상 시청용 렌즈 조립체 |
TW201213128A (en) * | 2010-07-05 | 2012-04-01 | Sumitomo Chemical Co | Laminate and process for preparing the same |
WO2012090791A1 (ja) * | 2010-12-28 | 2012-07-05 | 日本ゼオン株式会社 | 位相差フィルム積層体及び位相差フィルム積層体の製造方法 |
JP5711588B2 (ja) * | 2011-03-31 | 2015-05-07 | 富士フイルム株式会社 | 3d画像表示装置、3d画像表示装置用パターン偏光板、及び3d画像表示システム |
JP6243341B2 (ja) * | 2012-10-03 | 2017-12-06 | 株式会社クラレ | 積層シートおよびその製造方法並びに表面保護シート |
JP6394011B2 (ja) * | 2013-03-21 | 2018-09-26 | 住友化学株式会社 | 偏光板の製造方法 |
CN104412138B (zh) * | 2013-06-12 | 2016-12-07 | Lg化学株式会社 | 包括通过紫外光照射调整偏振片颜色的操作的偏振板的制备方法 |
KR101678275B1 (ko) * | 2013-09-30 | 2016-11-21 | 주식회사 엘지화학 | 내츄럴 블랙에 근접한 편광판 제조 방법 및 이를 이용하여 제조된 편광판 |
CN103647027B (zh) * | 2013-12-10 | 2016-01-06 | 京东方科技集团股份有限公司 | 一种多功能封装膜及显示装置 |
KR102338473B1 (ko) * | 2014-12-26 | 2021-12-14 | 삼성전자주식회사 | 윈도우 커버, 이를 가지는 디스플레이장치 및 그 제조방법 |
CN104536173A (zh) * | 2015-01-22 | 2015-04-22 | 京东方科技集团股份有限公司 | 液晶显示面板 |
JP6707852B2 (ja) * | 2015-12-16 | 2020-06-10 | コニカミノルタ株式会社 | 偏光板保護フィルムの製造方法及び偏光板の製造方法 |
JP6798136B2 (ja) * | 2016-04-28 | 2020-12-09 | ウシオ電機株式会社 | 接合構造体の製造方法 |
TWI795086B (zh) * | 2016-12-14 | 2023-03-01 | 日商東洋紡股份有限公司 | 液晶顯示裝置、偏光板及聚對苯二甲酸乙二酯系樹脂膜 |
TWI602700B (zh) * | 2016-12-29 | 2017-10-21 | 住華科技股份有限公司 | 偏光板及包含其之顯示裝置 |
WO2018135495A1 (ja) * | 2017-01-17 | 2018-07-26 | 積水化学工業株式会社 | 充填接合材、保護シート付き充填接合材、積層体、光学デバイス及び光学デバイス用保護パネル |
JP7058179B2 (ja) * | 2018-05-31 | 2022-04-21 | 株式会社ブリヂストン | タイヤの製造方法 |
CN109116623A (zh) * | 2018-09-30 | 2019-01-01 | 惠科股份有限公司 | 偏光结构、显示面板及显示装置 |
JPWO2020138329A1 (ja) * | 2018-12-27 | 2021-10-14 | 日東電工株式会社 | 偏光板および偏光板ロール |
CN113227854A (zh) * | 2018-12-27 | 2021-08-06 | 日东电工株式会社 | 带相位差层的偏光板 |
CN113272688A (zh) * | 2018-12-27 | 2021-08-17 | 日东电工株式会社 | 偏光板及偏光板卷材 |
WO2023189796A1 (ja) * | 2022-03-30 | 2023-10-05 | 日東電工株式会社 | 偏光フィルム積層体、及び画像表示装置 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4922949B1 (zh) | 1970-12-23 | 1974-06-12 | ||
JP3602555B2 (ja) | 1993-06-07 | 2004-12-15 | 株式会社クラレ | 液晶表示装置 |
JPH09234845A (ja) | 1995-12-27 | 1997-09-09 | Sumitomo Chem Co Ltd | 積層体の製造法 |
TW314546B (en) | 1996-12-23 | 1997-09-01 | Nat Science Council | Adhesive-free adhesion between polymeric surfaces |
JP2000266932A (ja) * | 1999-03-12 | 2000-09-29 | Sekisui Chem Co Ltd | 偏光板保護フィルム及びそれを用いた偏光板 |
JP4688116B2 (ja) | 1999-04-15 | 2011-05-25 | コニカミノルタホールディングス株式会社 | 偏光板用保護フィルム |
TW200510790A (en) * | 1999-04-15 | 2005-03-16 | Konishiroku Photo Ind | Manufacturing method of protective film for polarizing plate |
US6220703B1 (en) * | 1999-12-29 | 2001-04-24 | Younger Manufacturing Co., Inc. | Ophthalmic lenses utilizing polyethylene terephthalate polarizing films |
JP2001315461A (ja) | 2000-05-09 | 2001-11-13 | Toray Ind Inc | 感熱孔版印刷マスター |
EP1237017A1 (en) * | 2001-02-20 | 2002-09-04 | Fuji Photo Film Co., Ltd. | Polarizing plate protection film |
JP2002303727A (ja) * | 2001-04-06 | 2002-10-18 | Nitto Denko Corp | 偏光フィルムの製造方法 |
JP2002303725A (ja) * | 2001-04-06 | 2002-10-18 | Nitto Denko Corp | 偏光フィルム、偏光フィルムを用いた光学フィルムおよび液晶表示装置 |
JP2002350640A (ja) * | 2001-05-28 | 2002-12-04 | Nitto Denko Corp | 偏光板用保護フイルムの製造方法および偏光板、偏光板を用いた光学フイルムならびに液晶表示装置 |
TWI296727B (en) * | 2001-09-19 | 2008-05-11 | Nitto Denko Corp | Polarizing plate and method of manufacturing the same, and liquid crystal display using the polarizing plate |
JP2003191387A (ja) | 2001-12-27 | 2003-07-08 | Mitsubishi Engineering Plastics Corp | 複合成形体およびその製造方法 |
DE20204104U1 (de) * | 2002-03-13 | 2002-06-27 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Leuchte zum Einbau in die Abdeckkappe eines Außenrückspiegels für Kraftfahrzeuge |
US6950235B2 (en) * | 2002-05-02 | 2005-09-27 | Corning Incorporated | Optical isolators and methods of manufacture |
-
2005
- 2005-03-04 JP JP2006519391A patent/JPWO2005085918A1/ja active Pending
- 2005-03-04 US US10/592,146 patent/US20070159576A1/en not_active Abandoned
- 2005-03-04 EP EP05719992A patent/EP1724617B1/en not_active Not-in-force
- 2005-03-04 WO PCT/JP2005/003720 patent/WO2005085918A1/ja active Application Filing
- 2005-03-04 CN CNB2005800072367A patent/CN100422772C/zh not_active Expired - Fee Related
- 2005-03-08 TW TW094106935A patent/TWI367927B/zh not_active IP Right Cessation
-
2009
- 2009-11-09 US US12/615,067 patent/US7952802B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20100051192A1 (en) | 2010-03-04 |
EP1724617A1 (en) | 2006-11-22 |
US7952802B2 (en) | 2011-05-31 |
US20070159576A1 (en) | 2007-07-12 |
CN100422772C (zh) | 2008-10-01 |
EP1724617A4 (en) | 2010-04-14 |
TW200535208A (en) | 2005-11-01 |
JPWO2005085918A1 (ja) | 2008-01-24 |
TWI367927B (en) | 2012-07-11 |
WO2005085918A1 (ja) | 2005-09-15 |
CN1930500A (zh) | 2007-03-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1724617B1 (en) | Optical device | |
KR20140128222A (ko) | 편광 필름 및 그 제조 방법, 광학 필름 및 화상 표시 장치 | |
KR102505686B1 (ko) | 광학 적층체 및 액정 표시 장치 | |
KR20160002889A (ko) | 광학 적층체 및 그것을 이용한 표시 장치 | |
US20140168544A1 (en) | Transparent double-sided adhesive sheet having linearly polarized light eliminating function | |
KR102535072B1 (ko) | 편광판 및 액정 표시 장치 | |
WO2018235462A1 (ja) | 画像表示装置の製造方法および該製造方法により得られた画像表示装置 | |
KR20200047380A (ko) | 편광판 및 표시 장치 | |
US11975500B2 (en) | Method for manufacturing polarizing plate | |
JP2005115085A (ja) | 偏光板保護フィルム及び積層体 | |
KR101134334B1 (ko) | 광학 소자 | |
CN112969940A (zh) | 偏振板 | |
WO2023054595A1 (ja) | 光学積層体及び画像表示装置 | |
WO2023286702A1 (ja) | 偏光素子、偏光板、及び画像表示装置 | |
WO2023189811A1 (ja) | 偏光フィルム、積層偏光フィルム、画像表示パネル、及び画像表示装置 | |
WO2022270402A1 (ja) | 表示装置 | |
WO2023054463A1 (ja) | 積層フィルム、光学積層体及び画像表示装置 | |
JP2023053913A (ja) | 光学積層体及び画像表示装置 | |
KR20240071393A (ko) | 광학 적층체 및 화상 표시 장치 | |
JP2022161832A (ja) | 積層体 | |
WO2023002830A1 (ja) | 偏光板及び画像表示装置 | |
TW202307485A (zh) | 積層體 | |
KR20220022410A (ko) | 반사방지용 편광판 및 이를 포함하는 화상표시장치 | |
TW202309565A (zh) | 偏光薄膜及影像顯示裝置 | |
KR20240071366A (ko) | 적층 필름, 광학 적층체 및 화상표시장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20060918 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20100317 |
|
17Q | First examination report despatched |
Effective date: 20100707 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: G02B 1/10 20060101ALI20111219BHEP Ipc: G02B 5/30 20060101AFI20111219BHEP Ipc: G02F 1/1335 20060101ALI20111219BHEP |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: WATANABE, TATSUFUMI, C/O KURARAY CO., LTD. Inventor name: FUJISAWA, KATSUYA, C/O KURARAY CO., LTD. Inventor name: TANABE, HIROFUMI, C/O KURARAY CO., LTD. |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KURARAY CO., LTD. |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 571119 Country of ref document: AT Kind code of ref document: T Effective date: 20120815 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602005035629 Country of ref document: DE Effective date: 20121011 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK05 Ref document number: 571119 Country of ref document: AT Kind code of ref document: T Effective date: 20120815 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20121215 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20121116 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20121217 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20121126 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20130516 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20121115 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602005035629 Country of ref document: DE Effective date: 20130516 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130331 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130304 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130331 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130331 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120815 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20050304 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130304 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20170320 Year of fee payment: 13 Ref country code: FR Payment date: 20170213 Year of fee payment: 13 Ref country code: DE Payment date: 20170228 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20170301 Year of fee payment: 13 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602005035629 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20180401 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20180304 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180401 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20181002 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180304 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180331 |